title: Microcytosis of unknown origin.
abstract: We report a case of constant microcytosis which could not be related to any of the usual, known causes. The biochemical and functional investigations showed - apart from the small volume - no difference compared with normal erythrocytes. There was no evidence for a hereditary defect. It is concluded that the condition may represent a variant of the normal.
mesh_terms: D000328:Adult; D004909:Erythrocyte Indices; D004910:Erythrocyte Membrane / Q000032:analysis; D004911:Erythrocyte Volume; D004913:Erythrocytes, Abnormal / Q000473:pathology*; D014644:Genetic Variation; D006505:Hepatitis / Q000097:blood; D006801:Humans; D008297:Male; D008563:Membrane Lipids / Q000032:analysis; D009996:Osmotic Fragility; D010743:Phospholipids / Q000032:analysis
chemical_list: D008563:Membrane Lipids; D010743:Phospholipids